42506992 has 20 divisors (see below), whose sum is σ = 89844696. Its totient is φ = 19321280.

The previous prime is 42506957. The next prime is 42506999. The reversal of 42506992 is 29960524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42506999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120583 + ... + 120934.

Almost surely, 2^42506992 is an apocalyptic number.

It is an amenable number.

42506992 is an abundant number, since it is smaller than the sum of its proper divisors (47337704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42506992 is a wasteful number, since it uses less digits than its factorization.

42506992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241536 (or 241530 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 42506992 is about 6519.7386450685. The cubic root of 42506992 is about 348.9957388992.

The spelling of 42506992 in words is "forty-two million, five hundred six thousand, nine hundred ninety-two".